Fine mapping and identification of causal alleles at the Ur-11 locus controlling rust resistance in common bean (Phaseolus vulgaris L.).

ABSTRACT: The Middle American rust resistance gene Ur-11 present in common bean (Phaseolus vulgaris L.) confers resistance to all but one known race of the pathogen Uromyces appendiculatus (Pers.) Unger. Even though progress has been made in understanding the host-pathogen interactions between common bean and U. appendiculatus, the causal alleles of the majority of rust resistance loci, including Ur-11, remain unknown. A genome-wide association study (GWAS) was conducted to identify genomic regions associated with resistance to the U. appendiculatus race 31-22, which is avirulent to Ur-11 but virulent to other Middle American rust resistance genes. GWAS using genotypic data consisting of approximately 70,959 SNP markers and phenotypic data based on the median reaction type (1-9 scale) of a panel of

SUBMITTER: Erfatpour M 

PROVIDER: S-EPMC11850475 | biostudies-literature | 2025 Feb

REPOSITORIES: biostudies-literature